package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;


    /**
     * 员工登录
     * @param request
     * @param employee
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){
        //1.将页面提交的密码进行md5加密处理
        String password=employee.getPassword();
        password= DigestUtils.md5DigestAsHex(password.getBytes());

        //2.根据页面提交的用户名username查找用户
        LambdaQueryWrapper<Employee> queryWrapper=new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp=employeeService.getOne(queryWrapper);

        //3.如果没找到返回登陆失败
        if(emp==null){
            return R.error("登陆失败");
        }

        //4.比对密码
        if(!emp.getPassword().equals(password)){
            return R.error("登陆失败");
        }

        //5.状态是否禁用
        if(emp.getStatus()==0){
            return R.error("用户已禁用");
        }

        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);
    }


    /**
     * 员工退出
     * @return
     */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }


    /**
     * 新增员工
     * @param request
     * @param employee
     * @return
     */
    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
        log.info("新增员工信息{}",employee.toString());

        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());
//
//        Long empId=(Long) request.getSession().getAttribute("employee");
//        employee.setCreateUser(empId);
//        employee.setUpdateUser(empId);

        employeeService.save(employee);

        return R.success("新增员工成功");
    }


    /**
     * 员工信息分页查询
     * @param page
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
        log.info("page={},pagesize={},name={}",page,pageSize,name);

        //构造分页构造器
        Page<Employee> pageInfo=new Page<>(page,pageSize);

        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper=new LambdaQueryWrapper<>();
        queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);
        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);

        //执行查询
        employeeService.page(pageInfo,queryWrapper);


        return R.success(pageInfo);

    }

    /**
     * 根据员工id修改信息
     * @param employee
     * @return
     */
    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
        long id = Thread.currentThread().getId();

        log.info("update线程id为{}",id);
        log.info(employee.toString());

//        Long empId =(Long) request.getSession().getAttribute("employee");
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(empId);
        employeeService.updateById(employee);
        return R.success("员工信息修改成功");

    }

    /**
     * 根据id查询员工信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        log.info("根据id查询员工信息");

        Employee employee = employeeService.getById(id);
        if(employee!=null){
            return R.success(employee);
        }
        return R.error("未查到员工信息");

    }

}
